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      <h1>PETSc</h1>
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                <li><a href="dev.html">dev</a></li>
                <li><a href="313.html">3.13</a></li>
                <li><a href="312.html">3.12</a></li>
                <li><a href="311.html">3.11</a></li>
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                <li><a href="300.html">3.0.0</a></li>
                <li><a href="233.html">2.3.3</a></li>
                <li><a href="232.html">2.3.2</a></li>
                <li><a href="231.html">2.3.1</a></li>
                <li><a href="230.html">2.3.0</a></li>
                <li><a href="221.html">2.2.1</a></li>
                <li><a href="220.html">2.2.0</a></li>
                <li><a href="216.html">2.1.6</a></li>
                <li><a href="215.html">2.1.5</a></li>
                <li><a href="213.html">2.1.3</a></li>
                <li><a href="212.html">2.1.2</a></li>
                <li><a href="211.html">2.1.1</a></li>
                <li><a href="21.html">2.1.0</a></li>
                <li><a href="2029.html">2.0.29</a></li>
                <li><a href="2028.html">2.0.28</a></li>
                <li><a href="2024.html">2.0.24</a></li>
                <li><a href="2022.html">2.0.22</a></li>
                <li><a href="2018-21.html">2.0.18-21</a></li>
                <li><a href="2017.html">2.0.17</a></li>
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      <p>
        We will continually add new features and enhanced functionality in
        upcoming releases; <b>small changes in usage and calling sequences
          of PETSc routines will continue to occur</b>.  Although keeping
        one's code accordingly up-to-date can be annoying, all PETSc users will
        be rewarded in the long run with a cleaner, better designed, and
        easier-to-use interface.
      </p>

      <p>
        We suggest that users who want to upgrade their current PETSc
        application codes from a particular version to the most recent release
        proceed through the changes listed in this file in increasing order of
        version numbers. (Note: One can determine the release number of any
        current PETSc installation by looking in the file
        include/petscversion.h) Many of the interface changes can be handled
        quickly and easily by using global replacement via your favorite text
        editor. See the file <a href="../codemanagement.html">documentation/codemanagement.html</a>
        for some tips that we find helpful in keeping our own code up to date
        and that should be generally useful for effective code management.
      </p>

      <p><b>Releases of PETSc:</b></p>

      <ul>
        <li><a href="dev.html">master</a> - petsc development copy</li>
        <li><a href="313.html">3.13</a> - Public Release, Mar 30, 2020</li>
        <li><a href="312.html">3.12</a> - Public Release, Sep 29, 2019</li>
        <li><a href="311.html">3.11</a> - Public Release, Mar 29, 2019</li>
        <li><a href="310.html">3.10</a> - Public Release, Sep 12, 2018</li>
        <li><a href="39.html">3.9</a> - Public Release, Apr 7, 2018</li>
        <li><a href="38.html">3.8</a> - Public Release, Sep 26, 2017</li>
        <li><a href="37.html">3.7</a> - Public Release, Apr 25, 2016</li>
        <li><a href="36.html">3.6</a> - Public Release, Jun 9, 2015</li>
        <li><a href="35.html">3.5</a> - Public Release, Jun 30, 2014</li>
        <li><a href="34.html">3.4</a> - Public Release, May 13, 2013</li>
        <li><a href="33.html">3.3</a> - Public Release, Jun 5, 2012</li>
        <li><a href="32.html">3.2</a> - Public Release, Sep 8, 2011</li>
        <li><a href="31.html">3.1</a> - Public release, Mar 25, 2010</li>
        <li><a href="300.html">3.0.0</a> - Public release, Dec 19, 2008</li>
        <li><a href="233.html">2.3.3</a> - Public release, May 23, 2007</li>
        <li><a href="232.html">2.3.2</a> - Public release, Sep 1, 2006</li>
        <li><a href="231.html">2.3.1</a> - Public release, Feb, 3, 2006</li>
        <li><a href="230.html">2.3.0</a> - Public release, Apr, 26, 2005</li>
        <li><a href="221.html">2.2.1</a> - Public release, Aug, 18 2004</li>
        <li><a href="220.html">2.2.0</a> - Public release, Feb 27, 2004</li>
        <li><a href="216.html">2.1.6</a> - Public release, Aug 5, 2003</li>
        <li><a href="215.html">2.1.5</a> - Public release, Jan 27, 2003</li>
        <li>2.1.4 - private - Microsoft Cluster Software CD</li>
        <li><a href="213.html">2.1.3</a> - Public release, May 31, 2002</li>
        <li><a href="212.html">2.1.2</a>- public release, April 22 , 2002</li>
        <li><a href="211.html">2.1.1</a> - public release, December 19, 2001</li>
        <li><a href="21.html">2.1.0</a> - public release, April 11, 2001</li>
        <li><a href="2029.html">2.0.29</a> - public release, September 26, 2000</li>
        <li><a href="2028.html">2.0.28</a> - public release, March 27, 2000</li>
        <li>2.0.25, 2.0.26,2.0.27 private releases</li>
        <li><a href="2024.html">2.0.24</a> - public release, April 6, 1999</li>
        <li>2.0.23 - private release, September 29,1998</li>
        <li><a href="2022.html">2.0.22</a> - public release, April 29, 1998</li>
        <li><a href="2018-21.html">2.0.21</a> - public release, November 13, 1997</li>
        <li>
          <a href="2018-21.html">2.0.18</a>,
          <a href="2018-21.html">2.0.19</a>,
          <a href="2018-21.html">2.0.20</a> - private releases
        </li>
        <li><a href="2017.html">2.0.17</a> - public release, April 5, 1997</li>
        <li><a href="2016.html">2.0.16</a> - private release, December 10, 1996 for "Bring Your Own Code" Workshop participants</li>
        <li><a href="2015.html">2.0.15</a> - public release, October 4, 1996</li>
        <li>2.0.13 - public release, April 18, 1996</li>
        <li>2.0.Beta.10 - public release, December 15, 1995</li>
        <li>2.0.Beta.8 - public release, October 13, 1995</li>
        <li>2.0.Beta.6 - public release, July 30, 1995</li>
        <li>2.0.Beta.4 - public release, June 21, 1995</li>
      </ul>

      <p>
        We announce new PETSc releases on the <a href="https://lists.mcs.anl.gov/mailman/listinfo/petsc-announce">petsc-announce mailing list</a>.
      </p>

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